Flavone apiosyltransferase

In enzymology, a flavone apiosyltransferase (EC number|2.4.2.25) is an enzyme that catalyzes the chemical reaction

:UDP-apiose + 5,7,4'-trihydroxyflavone 7-O-beta-D-glucoside $ightleftharpoons$ UDP + 5,7,4'-trihydroxyflavone 7-O- [beta-D-apiosyl-(1->2)-beta-D-glucoside]

Thus, the two substrates of this enzyme are UDP-apiose and 5,7,4'-trihydroxyflavone 7-O-beta-D-glucoside, whereas its 3 products are UDP, 5,7,4'-trihydroxyflavone, and [7-O- [beta-D-apiosyl-(1->2)-beta-D-glucoside] .

This enzyme belongs to the family of glycosyltransferases, specifically the pentosyltransferases. The systematic name of this enzyme class is UDP-apiose:5,4'-dihydroxyflavone 7-O-beta-D-glucoside 2"-O-beta-D-apiofuranosyltransferase. Other names in common use include uridine diphosphoapiose-flavone apiosyltransferase, and UDP-apiose:7-O-(beta-D-glucosyl)-flavone apiosyltransferase. This enzyme participates in flavonoid biosynthesis.

References

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External links

::"The CAS registry number for this enzyme class is CAS registry|37332-49-3."

Gene Ontology (GO) codes